Rosetta 2 is necessary if you want to be able to run older non-native Intel x86 apps on new Apple Silicon Macs, like the M1 MacBook Pro, MacBook Air, or Mac mini. Curiously, Rosetta 2 is not installed by default on these Macs however, so if you wish to run these apps you’ll need to install Rosetta 2 onto the Apple Silicon Mac yourself.

There are two ways to install Rosetta 2 onto an Apple Silicon Mac; using the Terminal, or by attempting to open a non-native x86 app which prompts an installer. You can use whichever method you’d like, as both will have the same…